CN2222990Y - Electronic ballast device with iron core electroinduction - Google Patents

Abstract

The utility model relates to an electronic ballast of a fluorescent lamp, which belongs to an illumination electric appliance. The utility model is composed of an iron core inductor, a capacitor, a diode, a resistor, a lamp socket, etc. The iron core inductor replaces a value limiting resistor for limiting the peak current of the fluorescent lamp in the existing electronic ballast. The utility model solves the problems that a current limiting resistor can not be installed in the lamp socket or in a ballast casing because the power consumption of the resistor which is used for limiting peak current is high in a capacitance voltage doubling electronic ballast. The utility model is characterized in that the low frequency iron core inductor and a current doubling rectifier are connected in series, and the utility model which is used for the fluorescent lamp has the advantages of good reliability, low cost, etc.

Description

The electronic ballast device of ribbon core inductance

The utility model belongs to the daily electric lighting of low pressure.

The essential starter that uses of traditional fluorescent lamp iron inductance ballast, this lighting device, when the line voltage bias voltage, can't make daylight lamp glow starting, and fluorescent lamp and starter all very easily damage, so the fluorescent lighting fixtures that line voltage is unstable and voltage area on the low side can't normally use existing low-frequency iron core inductance ballast and starter to assemble.The electric ballast that grew up in recent years without starter, can be depressed at the civil power of bias voltage daylight lamp glow starting is lighted, and it more and more is subject to people's attention, and it will replace traditional iron inductance ballast and starter gradually.Present electric ballast has two types, a kind of is the electric ballast that high frequency is lighted, it is by electronic devices and components such as transistor, electric capacity, resistance, diode, high-frequency inductors, civil power changed into about the high-frequency electrical of 20KC give me a little fluorescent lamp, its luminous efficiency height, loss are low, therefore power savings is preferably arranged, and can be normally luminous in line voltage occasion on the low side, but owing to will use the triode frequency conversion, and make triode work in 300 volts of high pressure and about 20KC higher-order of oscillation state, so its cost height, reliability is relatively poor.This is in economy under-developed area still, and particularly vast rural area also is difficult to promote this high-frequency electronic ballast at present.Another kind is the electric ballast that direct current is lighted, it is by electric capacity, components and parts such as diode and resistance are formed, with the civil power multiplication of voltage be rectified into direct current and supply with fluorescent lamp and light illumination, because its triode of no use, be not operated in high frequency yet, what use is components and parts such as higher electric capacity of reliability and diode, therefore reliability is than high-frequency electronic ballast height, cost is also lower, but it is a peak current of making the restricted passage fluorescent lamp with resistance, therefore oneself power consumption is also much bigger than high-frequency electronic ballast, this current-limiting resistance can not be installed in the fluorescent lamp base, or in the ballast shell.

A purpose of the present utility model is self active loss that reduces in the multiplication of voltage electronic ballast device of dc point fluorescent lamp.

Another purpose of the present utility model is to make traditional iron inductance ballast can normally light luminous under line voltage on the low side and can be without starter.

The utility model provides a kind of voltage-multiplying type DC electronic ballast device of ribbon core inductance, it is made up of low-frequency iron core inductance, electric capacity, diode, resistance and lamp socket, it is characterized in that voltage-doubler rectifier of electric capacity and diode composition, have a low-frequency iron core inductance and voltage-doubler rectifier to be in series.Iron inductance can be serially connected in: 1. in the direct current output loop of voltage-doubler rectifier, 2. in the ac input circuit of voltage-doubler rectifier; 3. between inner two diodes of voltage-doubler rectifier.Iron inductance can be installed in the fluorescent lamp base, and voltage-doubler rectifier can be installed in another fluorescent lamp base, perhaps iron inductance and voltage-doubler rectifier is installed in the shell of a ballast.The electronic ballast device of the voltage-multiplying type ribbon core inductance that this practicality provides abbreviates GQS electronic ballast device as, it has replaced the current-limiting resistance of the peak limiting electric current in the foregoing dc capacitor sub-ballast with iron inductance, thereby reduced the oneself power consumption of ballast, and improved power factor.It with electric capacity and two and pipe voltage-doubler rectifier or the GQS module formed obtain the required high voltage of low voltage point fluorescent lamp, just can make traditional Inductive ballast normal starter point fluorescent lamp under low line voltage without starter.The above-mentioned essence of lighting daylight lamp apparatus of the utility model all is to increase the low frequency inductance that a ribbon core is arranged in the electronic ballast device, and this inductance can be gone here and there in ac circuit, also can be connected in the DC loop.It has the effect of restriction fluorescent lamp peak current, the useful life of improving fluorescent lamp.In order to improve its reliability, can be under various adverse circumstances operate as normal, letting out of all or part of electric capacity of its diode and they can be opened resistance and be packaged into a GQS module with insulating cement. for reducing cost and reducing volume, voltage-doubler rectifier of the present utility model and iron inductance all can combine with fluorescent lamp base and be designed to the GQS lamp socket, with diode, electric capacity and its bleeder resistance are assembled within the lamp socket of fluorescent lamp, iron inductance is assembled within another lamp socket of fluorescent lamp, perhaps with electric capacity, whole devices such as diode and iron inductance are the plug from the lamp lamp a upper end, and the lower end is in the H type fluorescent lamp GQS ballast device of fluorescent light bracket.Can make structure tight like this, but not only reduce cost but also reduced volume.

The utility model is made the peak value flow restricter with iron inductance than with resistance, for each 40 watts of fluorescent lamp, can save active power more than 10 watts, and can improve power factor.Use the utility model can make the fluorescent lamp of the thousands of iron inductance ballasts that under low-voltage, can't light send normal light, so its economic benefit and social benefit all is and significantly.

Implement modularization that the best structure of the utility model is the ballast device parts and integrated, become GQS module and GQS lamp socket.

The GQS module has special-purpose and general two types, the voltage-doubler rectifier that their inside all is made up of electric capacity and diode, special module inside except voltage-doubler rectifier is arranged, the electric capacity of the operating current of calming in addition, it can only by a kind of specification fluorescent lamp special use.General GQS inside modules has only voltage-doubler rectifier, the calm of its operating current is by external iron inductance, perhaps external iron inductance and electric capacity determine jointly, therefore general GQS module is applicable to the fluorescent tube of plurality of specifications, at ac buck electric capacity of general GQS module ac input end series connection, it just has the function of special-purpose GQS module.

The GQS lamp socket also has special-purpose and general two types, and special-purpose GQS lamp socket is in a lamp socket of fluorescent lamp special-purpose GQS module to be housed, the components and parts of perhaps special-purpose GQS inside modules, perhaps iron inductance, they can only with the supporting use of a kind of specification fluorescent tube.General GQS lamp socket is that general GQS module is housed in the lamp socket of fluorescent lamp, the components and parts in the perhaps general GQS module, but the different iron inductance of its adapted, perhaps electric capacity and iron inductance, just can with the supporting use of all size fluorescent tube.

Consult following explanation in conjunction with the accompanying drawings, just be easy to be familiar with above-mentioned purpose of the present utility model, and advantage of the present utility model.Wherein:

Fig. 1～5th, five kinds of typical embodiment schematic circuits of the utility model, they are formed by the two large divisions, the voltage-doubler rectifier that a part is made up of electric capacity and diode, the iron inductance that another part is used for the restriction peak current, Fig. 1,2 and 5 is connected on limit peak inductance in the DC loop of ballast device, and Fig. 3 and 4 is connected on limit peak inductance in the ac input circuit of ballast device.

Fig. 6 and 13 (C) is the printed circuit board diagram of the voltage-doubler rectifier among two embodiment of the present utility model.

Fig. 7 and 8 is contour structures schematic diagrames of the employed GQS module of the utility model.

Fig. 9 and Figure 10 are GQS modules of the present utility model, and iron inductance and fluorescent lamp circuit connect figure.

Figure 11 is a kind of iron inductance structural representation of the present utility model.

Figure 12 is the contour structures schematic diagram that the utility model uses the totally enclosed type ballast device that Incandescence lamp holder is connected with civil power.

Figure 13 is one of voltage-doubler rectifier in the utility model and lamp socket designs GQS lamp socket together of fluorescent lamp.

Figure 14 be iron inductance in the utility model and fluorescent lamp lamp socket designs GQS lamp socket together two.

Figure 15 is that the ballast device in the utility model is encapsulated in totally-enclosed ballast structural representation in the container with insulating cement.

Figure 16 is that ballast device of the present utility model is installed in the semiclosed ballast structural representation in a plastic housing or the iron-clad.

Fig. 1 is that iron inductance of the present utility model is connected on one of a kind of embodiment schematic circuit in the voltage-doubler rectifier DC loop afterwards.It is by extraordinary voltage doubling rectifing circuit, the peak value current limliting iron inductance of capacitance decompression, eliminates compositions such as the electric capacity that disturbs and fluorescent tube.C ₁, C ₂C ₃Electric capacity and D ₃, D ₄, D ₅Diode is formed four voltage doubling rectifing circuits, provides daylight lamp glow starting required high voltage, C ₀Electric capacity and D ₁～D ₄Four diodes are formed the bridge rectifier of capacitance decompression ballast, the calm required running current of fluorescent lamp, and iron inductance L establishes capacitor C for the restriction peak current ₄Be that fluorescent lamp eliminates the capacitor that disturbs, it and originally the capacitor in the starter for fluorescent play a part identical, resistance R ₀, R ₁, R ₂Be the electric capacity bleeder resistance, some occasion also can save need not, its line work principle is summarized as follows:

1, before fluorescent lamp does not puncture starter as yet, direct current output two ends are equivalent to open circuit, ac buck capacitor C ₀Both end voltage approaches zero, be equivalent to supply voltage and directly be added in 2 and 10 two ends, when power supply 2 ends for just, 10 ends are when negative, the one side power supply passes through D ₂And D ₅To C ₃Charging, C ₃Obtain positive right negative supply peak, a left side and make voltage, power supply passes through D on the other hand ₃To C ₁Charging, C ₁Just descending the negative supply crest voltage in the acquisition.When power supply 10 ends for just, 2 ends are when negative, power supply passes through D ₄To C ₂Charging, C ₂Just descending the negative supply crest voltage in the acquisition.When occurring 2 for the second time, rectifies power supply, when 10 ends are born, and C ₂On voltage just and the superimposed D that passes through of supply voltage forward ₅To C ₃Charging, C ₃Obtain twice power supply crest voltage.Rectify when power supply occurs 10 for the second time, when 2 ends were born, direct current output 3 and 6 two ends were with regard to output capacitance C ₁C ₃The voltage folded mutually with the power supply three, its peak-peak voltage can reach four times of power supply crest voltage, this voltage under normal 220 volts of alternating voltages its peak value up to 1200 volts, even when civil power drops to 140 volts, its crest voltage is also up to more than 700 volts, and this voltage is enough to make fluorescent lamp to puncture starter.

2, after daylight lamp glow starting, the voltage at fluorescent lamp two ends is very low, and it is far below the direct commutating voltage of power supply, and running current is also bigger, and therefore increasing in ac input circuit has the ac buck capacitor C ₀, its capacity determined by the fluorescent lamp specification, and in the multiplication of voltage capacitor C ₁And C ₂Go up each parallel diode D ₁And D ₂, two dc output ends 3 and 6 can be exported through ac capacitor C ₀The bridge rectifier voltage of step-down, diode D ₁And D ₂Adding, can reduce capacitor C ₁And C ₂Capacitance, help improving the power factor of rectifier power source.Because the electric current on the electric capacity can suddenly change, and only uses capacitor C.The current limliting electric current of calming can produce very big peak current in fluorescent lamp, fluorescent lifetime is reduced greatly, therefore the impedance that seals in the peak limiting electric current must be arranged, this impedance can be used resistance, also can use iron inductance, the current-limiting resistance resistance that the 40W fluorescent lamp uses must not have 12 watts at least less than the power of institute's loss on 70 Europe, the resistance, so very uneconomical, therefore should not use resistance to make the peak value current limliting in the fluorescent lamp more than 15W.What the utility model used is iron inductance, not only loss is low to use inductance peak limiting electric current, and, when supply voltage is lower than the voltage that the discharge of fluorescent lamp two ends will keep, can utilize the stored magnetic energy of inductance to pass through sustained diode because the inductance of string in DC loop has continuous current circuit ₃, D ₄And D ₅Continuation is powered to fluorescent lamp, and the fluorescent lamp ON time is increased, and sealing in of it can reduce series capacitance C ₀Capacity, improve the power factor of circuit, should also be noted that because the operating current of fluorescent lamp calm by decompression capacitor C ₀Serve as; iron inductance L just can only be used as the restriction of peak current; therefore; it needs only greater than 70 Europe the impedance of first-harmonic; like this iron inductance with copper and just seldom with the iron amount; have a surplus fully with 8 watts of required copper and 40 watts of fluorescent lamp peak values of iron current-limiting inductances of traditional iron core Inductive ballast; therefore; its the widely-used country that can be saves a large amount of copper material and steel; because fluorescent lamp is the direct current burning-point; its light stroboscopic effect is far below traditional Inductive ballast, and it has protective effect to eyesight.

Fig. 2 is that iron inductance of the present utility model is connected on a kind of embodiment schematic circuit in the DC loop of two rectification brachium pontis, its iron inductance has a centre tap, centre tap 2 is with the inductance separated into two parts, and its operation principle and Fig. 1 are similar, do not elaborate at this, when power supply 1 end for just, 2 ends when negative, the inductance restriction peak stream between 2 and 8 two ends, when power supply 2 ends for just, 1 end is when bearing, inductance restriction peak stream between 2 and 7 two ends, and continuous current circuit is D ₃, fluorescent tube, D ₅, D ₄With whole iron inductance L.The total inductance amount of the iron inductance among Fig. 2 is twice than the inductance value of Fig. 1, but the electric current that the iron inductance coil midstream among Fig. 2 is crossed has only Fig. 1 half, and therefore, their number of ampere turns is identical.Be noted that the iron inductance among Fig. 2 can also be connected on two other rectifier arm of rectifier bridge, at this moment as long as with D ₃Negative electrode and D ₄Anode is connected on power supply 2 ends, with D ₁, D ₂And C ₀Three components and parts tie points 10 separately, and with the centre cap reconfiguration of iron inductance at C ₀On the right-hand member, iron inductance upper end 7 is connected D ₄Negative electrode, iron inductance lower end 8 is connected D ₂Anode on get final product.

Fig. 3 is one of embodiment schematic circuit of the iron inductance of the present utility model ac power input end that is connected on voltage doubling rectifing circuit, its operation principle and Fig. 1 are similar, the peak current of the operating current of just calm fluorescent lamp and restriction fluorescent lamp is all served as by the iron inductance L that is connected in the ac circuit, the starting voltage of fluorescent lamp is to obtain high pressure with four times of rectification circuits, the iron inductance of Fig. 3 is the same with the traditional fluorescent lamp ballast, therefore available Fig. 3 transforms traditional fluorescent lamp ballast device, makes them also can be in starter work under the low-voltage.Become embodiment of the present utility model.

Fig. 4 is that iron inductance of the present utility model and current limiting capacitance are all gone here and there at one of the embodiment of voltage multiplying rectifier ac power input end schematic circuit, and its operation principle and Fig. 1 are similar, by iron inductance L peak limiting electric current, decompression capacitor C ₀Calm operating current, so the iron inductance amount is more much smaller than Fig. 3.Also capacitor C will be able to be fallen in 1 end of iron inductance L string at power supply in addition ₀String is at power supply 2 ends, and their other end connects the ac input end of voltage doubling rectifing circuit respectively.

Fig. 5 is iron inductance string of the present utility model another embodiment schematic circuit in the direct current output loop, and it is to use the voltage multiplying rectifier capacitor C ₁And C ₂Directly make the calm electric current (C of fluorescent lamp ₁And C ₂On do not have parallel diode), iron inductance L makes peak current limiter, it is applicable to lower mains-supplied voltage, for example 127 volts of mining fluorescent lamps.

Should be noted that, in order to reduce the connecting line with fluorescent lamp, 2 and 3 two ends among Fig. 2,3 and 4 can parallel connection be an end, 5 and 6 two ends can parallel connection be an end also, 5 and 6 two ends among Fig. 1 and 5 can parallel connection be an end also, and therefore, ballast device of the present utility model has four terminals at least, wherein two is ac input end, and two is dc output end in addition.The lead-in wire of GQS module described below and GQS lamp socket also can be done corresponding minimizing.

Fig. 6 is a printed circuit board diagram of the present utility model, among Fig. 6 whole printed panel be in Fig. 2 dotted line cabinet shown in the printing plate figure of circuit.In Fig. 6 printed panel 2,7 and 8 three are connected together, it be exactly in Fig. 1 and the 3 dotted line cabinets shown in the printing plate figure of circuit.Printing plate figure in Fig. 6 dotted line cabinet, with 2,7 be connected with 8 three it be exactly in Fig. 3 dotted line cabinet shown in the printing plate figure of circuit.Again with the diode D among Fig. 6 ₁And D ₂Do not burn-on, it is exactly the circuit printing plate figure shown in Fig. 5 dotted line cabinet.

Fig. 7 is a parts GQS module contour structures schematic diagram of the present utility model, its inside components and parts are packaged in the container after connecting by the components and parts shown in Fig. 1 dotted line, 1 and 2 is ac input end, and 3 and 6 is dc output end, and 4 and 5 for eliminating the interference capacitors terminals.It is a kind of special-purpose GQS module, and its calm electric current is decided by internal capacitance C ₀Capacity.If inside does not connect capacitor C ₀The inside modules components and parts are packaged in the container after connecting by the components and parts shown in Fig. 3 dotted line cabinet, and ac input end is 2 and 10, and it just becomes a general GQS module, it is by external different iron inductances, perhaps different electric capacity and iron inductance just can with the supporting use of all size fluorescent lamp.

Fig. 8 is the contour structures schematic diagram of the employed GQS module of the utility model.It is the module that connects the back encapsulation by the components and parts shown in Fig. 2 dotted line, it also is a kind of special-purpose GQS module, exchanges to be input as 1 and 2 two ends, and 7 are connected two non-central taps of iron inductance with 8 two ends, 3 and 4 connect one group of filament of fluorescent lamp, and 5 and 6 connect another group filament of fluorescent lamp.

Fig. 9 is that the utility model uses the circuit connection figure between special-purpose GQS module, iron inductance and the fluorescent lamp, and it is with the embodiment of iron inductance string in the direct current output loop.

Figure 10 is the fluorescent lamp circuit connection diagram that the utility model uses general GQS module and iron inductance, it be with the iron inductance string in ac input circuit, iron inductance is exactly traditional iron core ballast among the figure, and it has the dual-use function of calm operating current and peak limiting electric current.

Figure 12 is the contour structures schematic diagram that the utility model uses the totally enclosed type ballast device that is connected with civil power from vehement lamp holder.It is with power supply lead wire, the electric ballast of iron inductance and voltage-doubler rectifier design ribbon core inductance together, and wherein 1 and 2 for connecing the lamp holder of power supply, and 3 and 4 connect one group of filament of fluorescent lamp and 5 and 6 connect another group filament of fluorescent lamp.

Because four leading-out ends of two groups of filaments of H type fluorescent tube are a four-core plug, therefore and its matched four-core fluorescent light bracket just can directly design in Figure 12 structure, with 3,4,5 and 6 four lead-in wires among socket replacement Figure 12.

Figure 13 is a general GQS holder structure schematic diagram of the present utility model, it is that a voltage-doubler rectifier and a daylight lamp holder design are in the same place, Figure 13 (C) is its internal printed circuit board figure, the components and parts of the voltage multiplying rectifier shown in being welded with in Fig. 3 dotted line cabinet above it, and two energy and the contacted spring leaf 5 of filament of fluorescent lamp contact and 6, lead to 2 on the printed panel, 3, four lead-out wires of 4 and 10 numberings, printed panel is installed in the position shown in Figure 13 (b) in the lamp socket with self-tapping screw, four lead-in wires are drawn the outside on the printed panel, and it is exactly four lead-out wires of general GQS lamp socket.

Figure 14 is a special-purpose GQS holder structure schematic diagram of the present utility model.Figure 14 (b) is illustrated in special-purpose GQS-L lamp socket that an iron inductance shown in Figure 11 is housed in the fluorescent lamp base.Replace iron inductance L as if the printed panel shown in Figure 14 (C) (whole electric capacity and diode shown in being welded with in Fig. 1 dotted line cabinet on the printed panel) is installed on the position of Figure 14 (b) iron inductance and promptly become another kind of special-purpose GQS-C lamp socket.GQS-L lamp socket and GQS-C lamp socket be supporting to become fluorescent lamp ballast device of the present utility model.

Figure 15 is a kind of structural representation of half-closed type ballast device of the present utility model.It is in the container bright outside metal or plastics iron inductance and GQS module to be installed.

Figure 16 is a kind of structural representation of full-enclosed type ballast device of the present utility model.It is with insulating cement with iron inductance and GQS module glue the ballast in the container of a metal shell.

Be noted that in the line map of Fig. 1～5, can also use starter for fluorescent to replace capacitor C ₄, the purpose of preheating one-shot fluorescent lamp is arranged to reach filament of fluorescent lamp.

More than described preferred embodiment of the present utility model,, also can make other multiple variation obviously and do not deviate from spirit of the present utility model for the practician in those present technique fields.

Claims (6)

1. The electronic ballast device of a ribbon core inductance, it is made up of low-frequency iron core inductance (L), electric capacity, diode, resistance and lamp socket, it is characterized in that 1 voltage-doubler rectifier of electric capacity and diode composition, 1 low-frequency iron core inductance (L) is connected with voltage-doubler rectifier.
2. 2. the electronic ballast device of ribbon core inductance according to claim 1, its feature has 1 low-frequency iron core inductance to be serially connected in the direct current output loop of voltage-doubler rectifier thousand.
3. 3. the electronic ballast device of ribbon core inductance according to claim 1 is characterized in that having 1 low-frequency iron core inductance to be serially connected in the ac input circuit of voltage-doubler rectifier.
4. 4. the electronic ballast device of ribbon core inductance according to claim 1 is characterized in that the voltage-doubler rectifier in the ballast device is installed in the lamp socket of fluorescent lamp.
5. 5. the electronic ballast device of ribbon core inductance according to claim 1, it is characterized in that the low-frequency iron core inductance in the ballast device is installed in the lamp socket of fluorescent lamp.
6. 6. the electronic ballast device of ribbon core inductance according to claim 1, it is characterized in that low-frequency iron core inductance and voltage-doubler rectifier in the ballast device are installed in the ballast shell.

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